EP3045944B1 - Dispositif de conducteur lumineux - Google Patents

Dispositif de conducteur lumineux Download PDF

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Publication number
EP3045944B1
EP3045944B1 EP15151604.4A EP15151604A EP3045944B1 EP 3045944 B1 EP3045944 B1 EP 3045944B1 EP 15151604 A EP15151604 A EP 15151604A EP 3045944 B1 EP3045944 B1 EP 3045944B1
Authority
EP
European Patent Office
Prior art keywords
light
reflection
guiding device
motor vehicle
view
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15151604.4A
Other languages
German (de)
English (en)
Other versions
EP3045944A1 (fr
Inventor
Norbert Kürschner
Daniel Fritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMR Patents SARL
Original Assignee
SMR Patents SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMR Patents SARL filed Critical SMR Patents SARL
Priority to EP15151604.4A priority Critical patent/EP3045944B1/fr
Priority to EP18173316.3A priority patent/EP3392685B1/fr
Priority to CN201810531590.9A priority patent/CN108916824A/zh
Priority to CN201610030718.4A priority patent/CN105805698A/zh
Priority to US15/000,733 priority patent/US10168021B2/en
Publication of EP3045944A1 publication Critical patent/EP3045944A1/fr
Priority to US15/228,566 priority patent/US10060594B2/en
Priority to US15/916,650 priority patent/US10415792B2/en
Priority to US16/057,157 priority patent/US10393345B2/en
Priority to US16/119,149 priority patent/US10408424B2/en
Priority to US16/522,074 priority patent/US10539294B2/en
Application granted granted Critical
Publication of EP3045944B1 publication Critical patent/EP3045944B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
    • B60Q1/2665—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions on rear-view mirrors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2696—Mounting of devices using LEDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
    • B60R1/1207—Mirror assemblies combined with other articles, e.g. clocks with lamps; with turn indicators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F21S43/315—Optical layout thereof using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays

Definitions

  • the invention relates to a motor vehicle lighting device in a display device in a rear-view device, with a rear-view reflection surface, a light source and a light-guiding device, the light-guiding device, light source and rear-view reflection surface being arranged with respect to one another such that the light emitted by the light source is transmitted through the light-guiding device is deflected to a side of the rear view reflection surface facing away from the driver of the vehicle.
  • the invention also relates to a production method and a rear view device.
  • the light deflected by the light-guiding device is coupled out relatively inhomogeneously over a surface to be illuminated. This effect becomes clearer the larger the surface to be illuminated and the further the surface to be illuminated is from a light source.
  • a pictogram of a blind spot display with a small line width, for example 0.4 mm is backlit by means of known light guide devices, the inhomogeneity can be negligible.
  • the inhomogeneity becomes very clearly visible and perceived by a user as annoying. If the pictogram is illuminated very unevenly, in extreme cases this can result in a warning indication being misinterpreted by the user as not being illuminated.
  • the WO 01/27529 A1 describes a light guide with an input edge surface, a rear surface and an output surface, a reflector being attached directly to the rear surface by, for example, gluing.
  • a rearview mirror arrangement is from the EP 2 463 157 A1 known, namely with at least one mirror base, with a mirror head covering that covers a mirror glass in the mirror head, and with an optical warning indicator that generates light in response to a sensor signal to inform a driver of dangerous information, the light by the Mirror glass shines.
  • the mirror glass is mounted on a carrier plate which has a mounting space for at least one LED and at least one beveled light guide.
  • the EP 1 167 870 A2 discloses a lamp for vehicles, in particular for motor vehicles, consisting of a lamp housing which is delimited in the radiation direction by a cover lens and at least one elongate light-guiding element which has a light exit surface on a front side, a reflection surface on a rear side facing away from the front side and a first end has a light coupling surface with an upstream light source, the light exit surface of the light-guiding element being designed as part of the cover lens.
  • a lighting device with at least one lamp arranged on a circuit board and connected to a supply network via said circuit board is known, the circuit board being at least partially embedded in a translucent first potting compound, which enables a targeted light emission of the light generated by the lamp over at least one light exit area.
  • the circuit board is perpendicular to the light exit area, at least partially surrounded by the first translucent potting compound, is arranged in the potting compound, and in the first potting compound there is at least one light influencing element which has light-reflecting properties on at least one of its two main surfaces.
  • the EP 1 970 736 A1 relates to a rearview mirror for vehicles, preferably for motor vehicles, with a mirror glass attached to a carrier plate, a display unit arranged behind the mirror glass and the carrier plate, which generates at least one light source a light beam which can be coupled into a light guide which is provided with a coupling-out optics with which the light beam passes through at least one at least partially reflection-free region of the mirror glass is directed outwards, the light passing through the mirror glass being directed towards the driver.
  • a light pipe or lighting distributor of a backlit liquid crystal display panel in a hinge or tilt display for a laptop computer is from the US 6,428,176 B1 known.
  • a highly reflective, vapor-deposited coating is used to control and eliminate the escape of light except through the front or exit surface of the lighting distributor next to the back of a liquid crystal display panel.
  • a lighting device which includes a printed circuit board, one or more light emitting units formed on the printed circuit board, a resin layer formed on the printed circuit board in which the light emitting units are embedded, and a diffusion plate mounted on a is formed on the upper side of the resin layer.
  • One object of an exemplary embodiment of the invention is to provide a motor vehicle lighting device in a display device in a rearview device with a light guide device in which a homogeneous light distribution on a light coupling-out surface is improved.
  • the light-guiding device has a light coupling-in side for coupling light from a light source into the light-guiding device, a reflection side with a reflection layer for reflecting the coupled-in light, and a light coupling-out side.
  • the light outcoupling side is preferably essentially opposite the reflection side.
  • the distance between the reflection side and the light coupling-out side preferably decreases substantially with increasing distance from the light coupling-in side. This decrease in distance can be at least partially non-linear.
  • the reflection side and / or the reflection layer can not only be linearly inclined relative to the light decoupling side, but also run in an arcuate or curved manner.
  • the reflection side with the reflection layer is designed in such a way that light coming from the light coupling-in side is deflected to the light coupling-out side in order to achieve a more uniform or as uniform as possible light distribution on the light coupling-out side.
  • the light-guiding device can comprise a light-guiding body, on which the light coupling-in side, the light coupling-out side and the reflection side are formed.
  • the light-guiding device can be used in an illumination device in order to achieve the most homogeneous possible illumination result over a certain area with one or more light sources with a relatively limited light distribution, for example LEDs.
  • the light-guiding device can be used in a display device of a motor vehicle.
  • An example is a display device in a rearview device such as a driving assistant, for example a blind spot assistant.
  • the light-guiding device can in particular be used for the most homogeneous illumination or backlighting of a pictogram, for example a blind spot assistant.
  • the reflection layer is arranged on the reflection side.
  • the reflective layer is a layer of paint or varnish that is printed on the reflective side.
  • the reflection layer can be made of a different material or of the same material as the rest of the light guide device.
  • Preferred materials are plastics, in particular acrylonitrile-butadiene-styrene (ABS) and / or polymethyl methacrylate (PMMA) or plastics with similar material properties.
  • ABS acrylonitrile-butadiene-styrene
  • PMMA polymethyl methacrylate
  • both the reflection layer and the rest of the light guide device are made of PMMA.
  • the light-guiding device can also be a two-component plastic injection-molded part, the reflection layer being injection-molded as an ABS plate, for example white or colored, and then the remaining light-guiding device being formed on the reflection layer using transparent or clear PMMA.
  • the reflection side and / or the reflection layer can be at least partially step-like and / or wave-shaped.
  • the steps or waves are designed in such a way that the light coming from the light coupling-in side is deflected so that it emerges from the light coupling-out side as evenly as possible.
  • the light coupling-in side and the light coupling-out side can be designed in the form of a surface and these surfaces can be arranged essentially orthogonally or approximately orthogonally to one another.
  • the areas of the light coupling-in side of the light coupling-out side can form planes.
  • the surface of the light coupling-in side can be configured or shaped such that light coming from a light source is coupled into the light-guiding device as completely as possible and preferably as parallel as possible to the light coupling-out side.
  • the light coupling-in side can have one or more optics and / or recesses, it being possible for light sources to be introduced at least partially into the recesses.
  • the light-guiding device can be configured such that light that is coupled in and / or reflected and / or decoupled into the light-guiding device experiences essentially no change in color.
  • the reflection layer can be made of a color-neutral material that is silver-colored or white.
  • a color change can be achieved by arranging one or more color filters on the light coupling side and / or the reflection side and / or the reflection layer and / or the light coupling side and / or within the light guide device.
  • the light from a light source that emits white light can thereby be coupled out in color from the light-guiding device, for example red or yellow or green.
  • a color layer can have a temperature resistance of approx. -40 ° C to +115 ° C.
  • the light guiding device can furthermore have one or more holding devices in order to fix the light guiding device firmly or releasably to a circuit board.
  • the invention also describes a motor vehicle lighting device with a light guide device and a circuit board on which at least one light source is arranged.
  • the light source is arranged relative to the light guiding device in such a way that the light emitted by the light source is at least partially on the light coupling side of the light source
  • Light guide device is coupled.
  • the light is reflected by the reflection side and / or the reflection layer and coupled out on the light coupling-out side.
  • the motor vehicle lighting device can be used in, for example, a display device of a rearview device of a motor vehicle.
  • the reflective layer can be arranged in a tampon print on the base body, masking templates being used. Further details can be found in claims 9 and 10.
  • a rearview device for a motor vehicle comprises a rearview reflection surface, one or more illuminants and a light guide device. It is described in claims 11 to 13, wherein the illuminant and the light guide device can be a display of a blind spot assistant.
  • the light-guiding device, light source and rear-view reflection surface can be arranged relative to one another in such a way that the light emitted by the light source is deflected by the light-guiding device onto a side of the rear-view reflection surface facing away from the driver of the vehicle.
  • a surface of the rear-view reflection surface can thus be illuminated so that it is visible to the driver in order to provide a display function, for example of a blind spot assistant.
  • the rear-view reflection surface can include a recess or a partially reflecting part in an area, for example a pictogram, which is visibly backlit for a driver by the light source and the light-guiding device.
  • Fig. 1 shows a top view of a light guide device 2 with a light coupling side 4, a reflection side 6, a reflection layer 8 (see Fig. 2 ), and a light decoupling side 10.
  • the reflection side 6 lies under the light coupling-out side 10 and the reflection layer 8 lies under the reflection side 6.
  • the light coupling-out side 10 lies opposite the reflection side 6 and thus also the reflection layer 8, so that reflected light reaches the light coupling-out side 10 as uniformly as possible.
  • the distance between the light coupling-out side 10 and the reflection side 6 and thus also the reflection layer 8 decreases with increasing distance from the light coupling-in side 4.
  • the light coupling-out side 10 and the reflection side 6 can thus converge continuously or an edge 14 is formed, which also has a reflection layer 8 may have.
  • FIG. 1 two holding devices 12, which extend in the plane of the light decoupling side 10 away from the light guiding device 2 and each have a predetermined breaking point 14.
  • the holding device 12 which is not required can be separated, for example broken off.
  • Fig. 2 shows a side view of the light guide from Fig. 1 .
  • Light can enter the light guide device 2 via the light coupling side 4, in particular essentially parallel to the light output side 10. The light is then deflected via the reflection side 6 and the reflection layer 8 in the direction of the light output side 10.
  • Fig. 3 shows an enlarged view of a step-like reflection side 6 and / or reflection layer 8.
  • a step-like configuration which can alternatively or additionally be wave-like, can improve the steering of the light rays coming from the light coupling-in side 4 in such a way that the light decoupling from the light coupling-out side 10 is as homogeneous as possible and is evenly distributed over the light decoupling side 10.
  • Fig. 4 shows the light guide device 2 in a perspective view.
  • the light-guiding device 2 which is optimized for three light sources 18, has a reflection side 6 and reflection layer 8 formed with three partial funnels. The longitudinal axis of these partial funnels extends along the main direction of the coupled-in light.
  • the light guide device 2 can be adapted for any other number of light sources 18, for example 1, 2, 3, 4, 5, 6 or more.
  • Fig. 5 shows an illumination device 16 with three light sources 18, which are arranged on a circuit board 20.
  • the circuit board 20 with the LED light sources 18 is arranged in relation to the light guiding device 2 in such a way that the light, as represented by the arrows, is emitted essentially parallel to the light output side 10.
  • the light is deflected by the reflection side 6 and in particular by the reflection layer 8 in such a way that, as from the arrows in FIG Fig. 6 It can be seen that the light-guiding device 2 leaves via the light decoupling side 10.
  • Fig. 7 shows an exploded view of a rearview device 22 with a light guide device 2, which can be arranged on a circuit board 20 or directly on a holder 32.
  • the rear-view device 22 further has a rear-view reflection surface 24 and an underlying heating layer 26, the rear-view reflection surface 24 having a pictogram for a blind spot assistance display which can be illuminated via the light-guiding device 2 and through a recess 30 in the heating layer 26.
  • Circuit board 20, light guide device 2 and rear view reflection surface 24 with heating layer 26 can be arranged on a holder 32.
  • the remaining parts of a rearview device 22, such as housings, are not shown.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Planar Illumination Modules (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Claims (13)

  1. Dispositif d'éclairage de véhicule à moteur (16) dans un dispositif d'affichage dans un dispositif de rétroviseur (22), avec une surface réfléchissante de rétroviseur (24), un moyen d'éclairage (18) et un dispositif de conducteur lumineux (2),
    le dispositif de conducteur lumineux (2), la source lumineuse (18) et la surface réfléchissante de rétroviseur (24) étant disposés les uns par rapport aux autres de telle sorte que la lumière émise par la source lumineuse (18) est déviée par le dispositif de conducteur lumineux (2) sur un côté de la surface réfléchissante de rétroviseur (24) opposé au conducteur du véhicule,
    le dispositif de conducteur lumineux (2) étant formé avec
    a. un côté de couplage de lumière (4) pour le couplage de lumière dans une source lumineuse (18) ;
    b. un côté réfléchissant (6) avec une couche réfléchissante (8) ; et
    c. un côté du découplage de lumière (10), qui est essentiellement opposé au côté réfléchissant (6),
    la distance entre le côté réfléchissant (6) et le côté du découplage de lumière (10) diminuant essentiellement au fur et à mesure que la distance d'avec le côté de couplage de lumière (4) augmente, et le côté réfléchissant (6) avec la couche réfléchissante (8) étant conçu de telle sorte que la lumière venant du côté de couplage de lumière (4) est déviée vers le côté du découplage de lumière (10),
    le côté réfléchissant (6) étant formé au moins partiellement de façon échelonnée ou ondulée
    et
    la couche réfléchissante (8) étant une couche de peinture ou de laque qui est imprimée sur le côté réfléchissant (6).
  2. Dispositif d'éclairage de véhicule à moteur selon la revendication 1, la couche réfléchissante (8) comprenant au moins partiellement le même matériau ou un matériau différent que le reste du dispositif de conducteur lumineux (2).
  3. Dispositif d'éclairage de véhicule à moteur selon la revendication 1 ou 2,
    la couche réfléchissante (8) étant blanche.
  4. Dispositif d'éclairage de véhicule à moteur selon l'une quelconque des revendications précédentes, la couche de peinture présentant une résistance à la température d'environ -40 °C à +115 °C.
  5. Dispositif d'éclairage de véhicule à moteur selon l'une quelconque des revendications précédentes, le côté de couplage de lumière (4) et le côté du découplage de lumière (10) étant formés de façon plane et ces surfaces étant disposées de façon essentiellement perpendiculaire l'une par rapport à l'autre.
  6. Dispositif d'éclairage de véhicule à moteur selon l'une quelconque des revendications précédentes, le dispositif de conducteur lumineux (2) étant conçue de telle sorte que la lumière couplée dans le dispositif de conducteur lumineux (2) et/ou réfléchie et/ou découplée ne subit essentiellement aucun changement de couleur ou subit un changement de couleur, en particulier en rouge ou en jaune ou en vert.
  7. Dispositif d'éclairage de véhicule à moteur selon l'une quelconque des revendications précédentes, en outre avec un dispositif de retenue (12) pour la disposition fixe ou amovible d'une platine (20).
  8. Dispositif d'éclairage de véhicule à moteur selon la revendication 7, la platine (20) étant équipée d'au moins une source lumineuse (18), la source lumineuse (18) étant disposée relativement au dispositif de conducteur lumineux (2) de telle sorte que la lumière émise par la source lumineuse (18) est couplée dans le dispositif de conducteur lumineux (2) sur le côté de couplage de lumière (4) de celui-ci.
  9. Procédé pour la fabrication d'un dispositif d'éclairage de véhicule à moteur selon l'une quelconque des revendications précédentes, le dispositif de conducteur lumineux (2) étant fabriqué avec les étapes suivantes :
    mise à disposition d'un corps de base avec un côté de couplage de lumière (4), un côté réfléchissant (6) et un côté du découplage de lumière (10), lequel est essentiellement opposé au côté réfléchissant (6) ;
    impression d'une couche réfléchissante (8) sous la forme d'une couche de peinture ou de laque sur le côté réfléchissant (6), la couche réfléchissante (8) étant disposée à l'aide d'une tampographie sur le corps de base, en utilisant des pochoirs.
  10. Procédé selon la revendication 9,
    la couche réfléchissante (8) étant mise à disposition dans un premier matériau et le corps de base dans un deuxième matériau.
  11. Dispositif de rétroviseur (22) pour un véhicule à moteur avec une surface réfléchissante de rétroviseur (24), un moyen d'éclairage (18) et un dispositif d'éclairage de véhicule à moteur (16) selon l'une des revendications 1 à 8.
  12. Dispositif de rétroviseur selon la revendication 11, le dispositif d'affichage étant formé pour un affichage d'un assistant d'angle mort.
  13. Dispositif de rétroviseur (22) selon la revendication 11 ou 12, la surface réfléchissante de rétroviseur (24) comprenant dans une zone un élément non-réfléchissant ou partiellement réfléchissant, en particulier un pictogramme (28), lequel est rétroéclairé par la source lumineuse (18) et le dispositif de conducteur lumineux (2).
EP15151604.4A 2015-01-19 2015-01-19 Dispositif de conducteur lumineux Active EP3045944B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP15151604.4A EP3045944B1 (fr) 2015-01-19 2015-01-19 Dispositif de conducteur lumineux
EP18173316.3A EP3392685B1 (fr) 2015-01-19 2015-01-19 Retroviseur pour un vehicule a moteur
CN201810531590.9A CN108916824A (zh) 2015-01-19 2016-01-18 光传导装置
CN201610030718.4A CN105805698A (zh) 2015-01-19 2016-01-18 光传导装置
US15/000,733 US10168021B2 (en) 2015-01-19 2016-01-19 Light guiding device
US15/228,566 US10060594B2 (en) 2015-01-19 2016-08-04 Light guiding device
US15/916,650 US10415792B2 (en) 2015-01-19 2018-03-09 Light guiding device
US16/057,157 US10393345B2 (en) 2015-01-19 2018-08-07 Light guiding device, illumination device, and rear view device therewith
US16/119,149 US10408424B2 (en) 2015-01-19 2018-08-31 Light guiding device
US16/522,074 US10539294B2 (en) 2015-01-19 2019-07-25 Automobile exterior rear view mirror blind spot warning indication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15151604.4A EP3045944B1 (fr) 2015-01-19 2015-01-19 Dispositif de conducteur lumineux

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18173316.3A Division EP3392685B1 (fr) 2015-01-19 2015-01-19 Retroviseur pour un vehicule a moteur
EP18173316.3A Division-Into EP3392685B1 (fr) 2015-01-19 2015-01-19 Retroviseur pour un vehicule a moteur

Publications (2)

Publication Number Publication Date
EP3045944A1 EP3045944A1 (fr) 2016-07-20
EP3045944B1 true EP3045944B1 (fr) 2020-06-17

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EP18173316.3A Active EP3392685B1 (fr) 2015-01-19 2015-01-19 Retroviseur pour un vehicule a moteur
EP15151604.4A Active EP3045944B1 (fr) 2015-01-19 2015-01-19 Dispositif de conducteur lumineux

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EP18173316.3A Active EP3392685B1 (fr) 2015-01-19 2015-01-19 Retroviseur pour un vehicule a moteur

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EP (2) EP3392685B1 (fr)
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US20180195687A1 (en) 2018-07-12
CN108916824A (zh) 2018-11-30
US10415792B2 (en) 2019-09-17
US20160209000A1 (en) 2016-07-21
EP3045944A1 (fr) 2016-07-20
EP3392685A1 (fr) 2018-10-24
EP3392685B1 (fr) 2021-03-03
US20180340673A1 (en) 2018-11-29
US10168021B2 (en) 2019-01-01
US10393345B2 (en) 2019-08-27
CN105805698A (zh) 2016-07-27

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